Cyclic benzobisimidazolium derivative for the selective fluorescent recognition of HSO4-via a combination of C–H hydrogen bonds and charge interactions

Na Ri Song, Jong Hun Moon, Jiyoung Choi, Eun Jin Jun, Youngmee Kim, Sung Jin Kim, Jin Yong Lee, Juyoung Yoon

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Abstract

In this study, a novel fluorescent cyclic benzobisimidazolium derivative was designed and prepared for the selective recognition of HSO4-. Pre-organization, neutral C–H hydrogen bonds and charge interactions play key roles in recognizing HSO4-in aqueous solution. Spectroscopic studies, including UV-vis and fluorescence, showed that this cyclic receptor exhibited high selectivity in response to HSO4-. X-Ray crystal data, NMR data and theoretical calculations are presented to explain its unique binding mode.

Original languageEnglish
Pages (from-to)1765-1771
Number of pages7
JournalChemical Science
Volume4
Issue number4
DOIs
StatePublished - 4 Mar 2013

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